FIGURE 4.
Sperm acrosome reaction (A) and mitochondrial membrane potentials (B) were detected after acrosome reaction-induced. The levels of phospho- ser21-GSK3α, phospho-ser9-GSK3β, and GSK3α/β were analyzed by western blotting after acrosome reaction-induced (C). The blots were normalized to an endogenous protein (α-tubulin) (D–F). Values are specified as mean ± standard error of the mean (SEM). Columns with different lowercase letters differ significantly (p < 0.05). NCM, non-capacitation medium; CM, capacitation medium.